Portion of a surgical retractor with sensor



FIG. 1 shows a perspective view of a design for a portion of a surgical retractor with sensor.

FIG. 2 shows a left side view of the design.

FIG. 3 shows a right side view of the design.

FIG. 4 shows a bottom view of the design.

FIG. 5 shows a top view of the design.

FIG. 6 shows a front view of the design; and,

FIG. 7 shows a back view of the design.

The broken-line features in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a surgical retractor with sensor, as shown and described. 